Problem StatementWater in a piston-cylinder device begins as a saturated vapour at 180 bar and undergoesthree processes to complete a cycle.122→ 331a constant pressure process for which v₂/v₁ is 1.3a polytropic process to 240 bara constant volume processDetermine the net work and the heat transfer for each process (all in kJ/kg).Answer TableStageDescription1Net work (kJ/kg)1 Heat transfer for first process (kJ/kg)1 Heat transfer for second process (kJ/kg)1Heat transfer for third process (kJ/kg)Your AnswerCorrectAnswerGradePartDue Date(%)Weight Attempt Action/Message TypeOct 3, 2024 11:59 pm0.011/5SubmitOct 3, 2024 11:59 pm0.01Oct 3, 2024 11:59 pm0.01Oct 3, 2024 11:59 pm 0.01

Step 1: Step 2: Step 3: Step 4:

Answered: Problem Statement Water in a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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A piston-cylinder device contains 3.2 kg of air initially at 300 kPa and 227 °C (State 1). The air is now expanded slowly in polytropic process during which PV1.2-constant (n=1.2) until the volume is doubled (State 2). Then the air expanded at constant pressure until the volume reached three times the volume of State 1 (State 3). Air properties: R = 287 J/kg.K, C₁ = 718 J/kg.K, and Cp = 1005 J/kg.K a) Calculate the total work done and the heat transfer in kJ. b) Draw the two processes on p-v diagram.
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